Recommended tool for audio stretching

[Anakunda]

Hello, I'd like to hear some recommendation about preferred audio stretching tool, mostly to perform movies audio slowdowning from 25 -> 23.976 fps.

My choices are eac3to with -slowdown option, and Audition 3 (optionally Audition CS 5.5 if it has better quality).
Since Audition has some additional options that may improve the resampling quality, especially Precission Quality, and Preserve Speech Characteristics, eventually Constant Vowels (Slow!). If there's a better tool for doing this, please tell me.
:thanks: in advance

[Chumbo]

You can also use AviSynth to reencode the audio. For 25->23.976 you can use:

changes pitch but not tempo
TimeStretch(last, pitch=95.904)

changes tempo but not pitch
TimeStretch(last, rate=95.904)

tempo and pitch correction
TimeStretch(last, tempo=95.904)

BeHappy is one GUI you can use to accomplish this.

[Anakunda]

OK, I was merely interested in stretching quality of these three tool. I'd bet to Audition because the extra options but absence of automated processing is anoying. Also Audition 4 offers both iZotope Radius / Audition engines, I'd be interested which one is more suitable for movie processing.

[ramicio]

Eac3to would be the easiest and best method.

[Anakunda]

Eac3to would be the easiest and best method.

Thats true at least for easiness of use, but is the quality better than Audition? I'm changing tempo, not pitch so that the conversion is as most transparent as possible to listener..

[ramicio]

Yea, I don't think eac3to can do anything but alter both pitch and speed, so you'd have to use specialized stuff like Audition.

[manono]

For me, one of the main reasons to slow the audio is to restore the correct pitch. And if, at 25fps, the pitch and speed are already correct, why would one want to slow it to 23.976fps?